151 lines
3.1 KiB
Go
151 lines
3.1 KiB
Go
package stores
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import (
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"encoding/json"
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"io"
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"net/http"
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"os"
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"github.com/gorilla/mux"
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logging "github.com/ipfs/go-log/v2"
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"golang.org/x/xerrors"
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"github.com/filecoin-project/lotus/lib/tarutil"
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)
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var log = logging.Logger("stores")
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type FetchHandler struct {
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*Local
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}
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func (handler *FetchHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { // /remote/
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mux := mux.NewRouter()
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mux.HandleFunc("/remote/stat/{id}", handler.remoteStatFs).Methods("GET")
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mux.HandleFunc("/remote/{type}/{id}", handler.remoteGetSector).Methods("GET")
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mux.HandleFunc("/remote/{type}/{id}", handler.remoteDeleteSector).Methods("DELETE")
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mux.ServeHTTP(w, r)
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}
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func (handler *FetchHandler) remoteStatFs(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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id := ID(vars["id"])
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st, err := handler.Local.FsStat(r.Context(), id)
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switch err {
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case errPathNotFound:
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w.WriteHeader(404)
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return
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case nil:
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break
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default:
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w.WriteHeader(500)
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log.Errorf("%+v", err)
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return
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}
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if err := json.NewEncoder(w).Encode(&st); err != nil {
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log.Warnf("error writing stat response: %+v", err)
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}
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}
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func (handler *FetchHandler) remoteGetSector(w http.ResponseWriter, r *http.Request) {
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log.Infof("SERVE GET %s", r.URL)
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vars := mux.Vars(r)
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id, err := ParseSectorID(vars["id"])
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if err != nil {
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log.Error("%+v", err)
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w.WriteHeader(500)
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return
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}
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ft, err := ftFromString(vars["type"])
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if err != nil {
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log.Error("%+v", err)
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w.WriteHeader(500)
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return
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}
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paths, _, done, err := handler.Local.AcquireSector(r.Context(), id, ft, FTNone, false)
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if err != nil {
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log.Error("%+v", err)
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w.WriteHeader(500)
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return
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}
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defer done()
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path := PathByType(paths, ft)
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if path == "" {
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log.Error("acquired path was empty")
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w.WriteHeader(500)
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return
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}
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stat, err := os.Stat(path)
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if err != nil {
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log.Error("%+v", err)
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w.WriteHeader(500)
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return
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}
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var rd io.Reader
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if stat.IsDir() {
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rd, err = tarutil.TarDirectory(path)
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w.Header().Set("Content-Type", "application/x-tar")
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} else {
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rd, err = os.OpenFile(path, os.O_RDONLY, 0644)
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w.Header().Set("Content-Type", "application/octet-stream")
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}
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if err != nil {
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log.Error("%+v", err)
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w.WriteHeader(500)
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return
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}
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w.WriteHeader(200)
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if _, err := io.Copy(w, rd); err != nil { // TODO: default 32k buf may be too small
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log.Error("%+v", err)
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return
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}
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}
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func (handler *FetchHandler) remoteDeleteSector(w http.ResponseWriter, r *http.Request) {
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log.Infof("SERVE DELETE %s", r.URL)
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vars := mux.Vars(r)
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id, err := ParseSectorID(vars["id"])
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if err != nil {
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log.Error("%+v", err)
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w.WriteHeader(500)
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return
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}
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ft, err := ftFromString(vars["type"])
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if err != nil {
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log.Error("%+v", err)
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w.WriteHeader(500)
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return
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}
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if err := handler.Remove(r.Context(), id, ft); err != nil {
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log.Error("%+v", err)
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w.WriteHeader(500)
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return
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}
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}
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func ftFromString(t string) (SectorFileType, error) {
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switch t {
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case FTUnsealed.String():
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return FTUnsealed, nil
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case FTSealed.String():
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return FTSealed, nil
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case FTCache.String():
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return FTCache, nil
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default:
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return 0, xerrors.Errorf("unknown sector file type: '%s'", t)
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}
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}
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